I make this every time, ever since I learned this method! The most delicious cake recipe.

Gently fold the blueberries into the batter.
Cooking:

Pour the batter into the prepared pan and spread evenly.
Bake in the preheated oven for about 30 minutes until golden brown.
To make the frosting:
In a separate bowl, mix together the butter, cream cheese, icing sugar and lemon juice until smooth.
To frost and chill:
Spread the frosting evenly over the cooled cake.
Refrigerate the cake to set.
Tip:
Serve this delicious blueberry cake on a special occasion to delight your loved ones! 😋